Laser powder bed fusion (LPBF) is a method for selectively or partly melting a bed of powdered material using a laser, where each subsequent layer of molten or partly melted material is bonded to the previous layer [1, 2]. The rapid cooling rates inherent to this process result in large stress gradients, which can have a significant effect on the performance during service of metallic...
Explaining Deviatoric Residual Stresses and Load Transfer in Aluminum Alloys and
Composites with Complex Microstructure
S. EVSEVLEEV, I. SEVOSTIANOV, T. MISHUROVA, M. HOFMANN, R. KOOS, G. REQUENA, G. GARCES, G. BRUNO
The residual stresses and load transfer in multiphase metal alloys and their composites (with both random planar-oriented short fibers and particles) will be shown, as...
In order to improve the microstructure and mechanical properties of newly developed Ni-base superalloy VDM® Alloy 780 it is necessary to understand the $\gamma$’ hardening phase precipitation process. Here the precipitation process was studied in-situ by time-of-flight (TOF) neutron diffraction (ND) and small-angle neutron scattering (SANS) experiments at high temperature, which allowed us to...
Superalloys for mobility applications – In-situ characterization at high temperatures for optimized properties
S. Neumeier
Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Materials Science & Engineering, Institute I: General Materials Properties, Erlangen, Germany
*steffen.neumeier@fau.de
Superalloys are key materials of our modern society. They are not only used in...
